Construction of tanks and the like.



G. H. & H. D. L. LLOYD. CONSTRUCTION OF TANKS AND THE LIKE.

APPLICATION FILED NOV. 18, 1910.

1,033,91 3 v Patented July 30, 1912.

9 a 0 b c f e 5 f w a (1/ b &- 8 f b c f I 0 \cl o h 1721267225715; 7 George Jilloyd, 9 W, f b Jien 7y L50 Macaw. 6

enonen HERBERT LLOYD,

OF EASTBOD'BNE, AND HENRY DAVID LLEWELLYN LLOYD,

' OF BIRMINGHAM,- ENGLAND.

.consrnucrroir or range AND THE LIKE.

Speciflcationof Letters Patent. Patented July 30, 1912.

Application filed November 18, 1910. Serial No. 593,088.

To all whom it may concern:

Be "it known that we, GEORGE HERBERT LLOYD, a subject of the King of Great Britain and Ireland, and residing at 15 South Cliff, Eastbourne, in the county of Sussex, England, and HENRY DAVID LLEW- V'ELLYN LLOYD, a subject of the King of Greatv Britain and'Ireland, and residing at 104 Rotton Park road, Edgbaston, Birmingham, in the county of Warwick, England, have invented a certain new and useful Construction of Tanks and the Like, of which the following is a specification.

This invention relates to a new construction of tank and the like built up of'a number "of plates.

In multi late tanks as hitherto constructed elements of several, usually at least three different forms have always been required to be kept in stock in order to enable tanks of all sizes to be made from stock elements.

The object of the present invention is to piovide a new construction of tank and the li e.

The invention consists in a method of constructin a tank and the like with flanged umtplates, the flanges along at least two sides of each plate having a plurality of joint surfaces.

The invention also consists in the unit plate for the. method of constructing a tank and the like as above set forth in which such of the flanges as have a plurality of joint surfaces are formed with an outersurface at right angles to the late'and a connecting surface equally inclined to the plate and to thefirst. surface. It will be seen that with this new con-- struction of tankmany sizes-of tanks can 40 be made up from flanged plates which are all of the same-form so that only one form of tank plate need be stocked; The invention further consists in the various constructions of-tanksand the like as hereinafter described.

Referring ,now to the accompanying drawings:.Figures 1 and 2 show in elevation.

, and cross-sectional elevation respectively one form of plate according to. the resent invention Fig, 3-is a lan of a part y comleted tank constructe with plates of the orm shown: in Figs. L and 2. F i .4 is ,a

cross sectionon the line A-A o the incomplete tank'shown in Fig. 3, and Fig. 5 56 shows another form of plate in whichfthe flat part is bul ed out below the level of the flanges, whi e Fig. 6 shows to a larger scale a detailed view of a joint between two of the tank plates.

In carrying the invention into effect ac ac cording to the construction shown in Figs. 1, 2, 3 and 4 of the drawings the tank or the. like is formed of' several rectan ular, preferably square, plates of the form 5 own in Figs. 1 and 2 which are preferably stamped from sheet metal. Each late, a, is provided with four flanges, b, which are formed with two joint surfaces, 6 and c, the outer one, 6, being substantially at right angles to the planeof the plate and the joint surface, 0, adjacent to the plate being equally inclined thereto and to the outer surface, I), that is the obtuse angle between the inclined surface, a, and the plate, a, and that between the inclined surface, 0, and the outer surface, 11, are each substantially angles of one hundred and thirty five degrees. Such a. plate having flanges of this form is readily stamped in one operation from a piece of sheet metal or the like. i

In erecting for example atank formed by plates of the abovekind, the bottom, (1, of the tank is made by placing together several of the plates, 0, with the right an led flange part, b, downward so as to be a terward on the outside of the tank, as shown in Fig. 4. A suitable jointing material e such as lead strip having'been placed between the adjacent right angled joint surfaces, I), of the plates, bolts, f, referably, are passed through holes in tiese right angled parts and after erection the lead strip is well calked between the. plates to form a tight joint; The side plates, 9, are then connected to the bottom of the tank b placing the inclined joint surface, a, of t e side plates, g, in contact with the inclined joint surface, a, of the bottom plate, d the right angled flange art being at the outside of the tank as s ownin ig. 4. ,Jointing is placed between the ,correspondin inclined joint surfaces, 0, and the who e secured by bolts, 72., or the like, the joint being afterward madetight by calking. In consequence ofthe angle of inclination of the joint surface, 0, of the flanges the side plates, 9, will now be vertical to the bottom plates (1. At the vertical corners of the tank the side plates, g, are united in-a similar manner to the side and bottom plates, d,

that is by their inclined surfaces, 0, which are. now in contact. It will be noticed, howi ever, that in the construction of a tank which is more than one plate long or broad that difficulty may, in some cases according to the jointing used, arise in regard to the joint which occurs where the corners of two plates on the same side meet those-of two adjacent bottom plates, sincethe inclined flange surfaces 0, here form substantially the four sloping sides of a pyramid terminating in an opening. This difliculty can be overcome in several ways such as by using a lead washer adapted to fit into the pyramid shaped corner and to be heldin place by a suitable bolt passing to the outside.

In the case of a tank or the like which is more than one plate in breadth and length it will be seen that it is only essential for the plates to be provided with beveled flanges on two of thelr sides.

If desired the flat surface of the plates may be depressed below the level of the flanges, that is bulged outward thereby increasing the holding capacity of the tank and at the same time the rigidity of the plates, the cross section of such a plate being shown in Fig. 5.

It has been found that the new form of flange on the plate considerably reduces the weight of the plate, since the usual right angled corner bet-ween the flange and plate has been avoided and some of the weight ofmaterial therein saved. Such a reduction in the weight of material. in the plate has not however been attained with a sacrifice of strength or rigidity for the new form of plate has a, section of greater moment of 40 inertia than a plate having right angled flanges only. In the case of large tanks however, it is sometimes desirable to increase the strength or stiffness or both by pressing or forming suit-able ribs in the plates.

It will be seen that many other modificatlons in the mechanical details of the plates and tanks formed therefrom can be effected w thout in any way departing from the sp1r1t of the invention. Having now described our invention what we claim as new and desire to secure by Letters Patent is 1. A tank constructed of flanged unit plates, each plate having two joint surfaces 7 along at least two of its flanges the outer one of said joint surfaces being at rightangles to the surface of the plate while the other surface connects the first surface to the plate and is equally inclined thereto and to -the plate. l

2. A tank constructed of flanged unit plates each plate having two flanges at right angles to the plate and the other two flanges having two joint surfaces, the outer surface I being at right'angles to the plate while the adjacent plates in other is equally inclined to the plate and to the outer surface.

3. A tank constructed of flanged unit plates, each plate having two joint surfaces gles to the plate being utilized to connect adjacent plates which are in the same plane, and the inclined joint surfaces to connect one another.

4. A. tank constructed of flanged unit plates, each having. two flanges at right angles to the plate, and two flanges provided with two joint surfaces, the outer one of which is at right angles to the plate while the other is equally inclined to the plate and to the outer joint surface, the right angled. flanges and the joint surfaces which are at right angles to the plate being utilized to connect plates which are in the same plane, and the inclined surfaces to connect plates which are in planes at right angles to one another. v

5. A tank constructed of unit flanged plates, each plate having two joint surfaces formed along all of its flanges the outer one of said joint surfaces being at right angles to the plate while the other surface connects the outersurface to the plate and is.equally inclined to the plate and to the outer surface. 0 g

6. A tank constructed of unit flanged plates, each plate having two joint-surfaces along at least two of its flanges the outer one of said joint surfaces being at right angles to the surface of the plate while the other surface connects the first surface to the plate and is equally inclined thereto and to the plate, bolts passing through adjacent outer joint surfaces of adjacent plates which are in the same plane and bolts passing through the inclined joint surfaces of adjacent plates which' are in planes at right an gles to one another.

7 A tank constructed of unitflanged square plates each plate having two joint surfaces formed along all the flanges the outer joint one of each of said pair of joint surfaces being at right angles to the plate while the other surface connects said outer surface to the plate and is equally inclined to the latter and to the outer surface, bolts passing through the adjacent outer joint surfaces of plates which are in the same plane and bolts passing through the adjacent inclined surfaces of plates which are in planes at right angles to one another.

8. A tank constructed of unit flanged plates each plate having two flanges atright angles to the plate and two flanges which planes at right angles to have two joint surfaces, an outer surface at right angles to the plate and a surface connecting said outer surface to the plate and equally inclined to said outer surface and to the plate, bolts passing through said right angled flanges of adjacent plates which are in the same plane and bolts assing through said inclined surfaces of adjacent plates which are in plates at right angles to one another.

9. A tank constructed of flanged unit plates, each plate having a plurality of joint surfaces along at least two of its flanges and being bulged outward to increase the holding capacity of the tank.

10. A tank constructed of flanged unit plates, each plate having two joint surfaces along at least two of its flanges the outer one of said joint surfaces being at right angles to the surface of the plate while the other surface connects the first surface to the plate and is equally inclined thereto and to the plate, each plate being bulged outward to increase the capacity of the tank.

11. A tank constructed of flanged unit plates each plate having two flanges at right angles to the plate and the other two flanges having two joint surfaces, the outer surface being at right angles to the plate while the other is equally inclined to the plate and to the outer surface, each plate being bulged outward for the purpose of increasing the holding capacity of the tank.

' In testimony whereof, we aifix our signatures in presence of two witnesses.

GEORGE HERBERT LLOYD. HENRY DAVID LLEWELLYN LLOYD. Witnesses:

Homes EDWARD Moore, FRANK KEOGAN. 

